DIN ETS 300544:1995-09 European digital cellular telecommunications system (Phase 2) - Call Waiting (CW) and Call Hold (HOLD) supplementary services - Stage 2; English version ETS 300544:1995

标准编号：DIN ETS 300544:1995-09

英文标题：European digital cellular telecommunications system (Phase 2) - Call Waiting (CW) and Call Hold (HOLD) supplementary services - Stage 2; English version ETS 300544:1995

德文标题：Europäisches zellulares digitales Funkkommunikationssystem (Phase 2) - Anklopfen (CW) und Halten (HOLD) von Verbindungen bei Zusatzdiensten, Stufe 2; Englische Fassung ETS 300544:1995

发布日期：1995-09

DIN ETS 300544:1995-09 European digital cellular telecommunications system (Phase 2) - Call Waiting (CW) and Call Hold (HOLD) supplementary services - Stage 2; English version ETS 300544:1995

标准预览图